Vulnerability in P11-Kit Project
CVE-2026-13757
A flaw was found in p11-kit. The RPC message attribute parsing functions p11_rpc_message_get_attribute() and p11_rpc_message_get_attribute_array_value() form a mutually-recursive call chain with no recursion depth limit when processing nested CKA_WRAP_TEMPLATE, CKA_UNWRAP_TEMPLATE, and CKA_DERIVE_TEMPLATE attributes. An unauthenticated attacker with local access to the p11-kit RPC Unix domain socket can send a specially crafted request with deeply nested template attributes, causing stack exhaustion and crashing the p11-kit server process and its dependent services.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (9.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
Affected products
- P11-Kit Project
- Red Hat Discovery 2 — versions 1786638573, 1786634825
- Red Hat Enterprise Linux 10 — versions 0:0.26.4-1.el10_2
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9 — versions 0:0.26.4-1.el9_8
- Red Hat Hardened Images — versions 0.26.2-1.2.hum1, 0.26.4-1.hum1
- Red Hat Insights Proxy 1.5 — versions 1786433656
- Red Hat Openshift Container Platform 4
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-13757 (vdb-entry, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Issue Tracking, Vendor Advisory)
- access.redhat.com/errata/RHSA-2026:37469 (vendor-advisory)
- github.com/advisories/GHSA-p2wm-69qx-x25w
- access.redhat.com/errata/RHSA-2026:38342 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:49668 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:49667 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:53371 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:54387 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:54760 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-13757?
- CVE-2026-13757 is a medium-severity vulnerability in P11-Kit Project, classified under Uncontrolled Recursion. CVSS score: 6.2/10. Published 2026-06-29.
- How severe is CVE-2026-13757?
- Medium severity. CVSS v3 base score is 6.2 out of 10.